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@article{ART001319887},
author={채재홍 and 박주석 and 안종필 and 김경훈},
title={Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering},
journal={Journal of the Korean Crystal Growth and Crystal Technology},
issn={1225-1429},
year={2009},
volume={19},
number={1},
pages={33-38}

TY - JOUR
AU - 채재홍
AU - 박주석
AU - 안종필
AU - 김경훈
TI - Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering
JO - Journal of the Korean Crystal Growth and Crystal Technology
PY - 2009
VL - 19
IS - 1
PB - The Korea Association Of Crystal Growth, Inc.
SP - 33
EP - 38
SN - 1225-1429
AB - The effect of Y2O3 as a sintering additive on thermal conductivity and microstructure of pressureless sintered AlN ceramics was investigated at sintering temperature range from 1,700 to 1,900oC. Y2O3 added AlN specimens showed higher densification rate than pure AlN because of the formation of the yttrium aluminates secondary phase by reaction of Y2O3 and Al2O3 of AlN surface. The thermal conductivity of AlN specimens was promoted by the addition of Y2O3 in spite of the formation of secondary phase in AlN grain boundaries and grain boundary triple junction, because Y2O3 addition could reduced the oxygen contents in AlN lattice which is primary factor of thermal conductivity. The thermal conductivity of AlN specimens was promoted by increasing sintering time because the increases of average grain size and the elimination of secondary phases from the grain boundary due to the evaporation. Particularly, the thermal conductivity of AlN specimen sintered at 1,900oC for 5 hours improved over 20 %, 141Wm−1K−1, compared with the specimen sintered at 1,900oC for 1 hour.
KW - Aluminum nitride;Yttria;Thermal conductivity;Pressureless Sintering
DO -
UR -
ER -

채재홍, 박주석, 안종필 and 김경훈. (2009). Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering. Journal of the Korean Crystal Growth and Crystal Technology, 19(1), 33-38.

채재홍, 박주석, 안종필 and 김경훈. 2009, "Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering", Journal of the Korean Crystal Growth and Crystal Technology, vol.19, no.1 pp.33-38.

채재홍, 박주석, 안종필, 김경훈 "Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering" Journal of the Korean Crystal Growth and Crystal Technology 19.1 pp.33-38 (2009) : 33.

채재홍, 박주석, 안종필, 김경훈. Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering. 2009; 19(1), 33-38.

채재홍, 박주석, 안종필 and 김경훈. "Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering" Journal of the Korean Crystal Growth and Crystal Technology 19, no.1 (2009) : 33-38.

채재홍; 박주석; 안종필; 김경훈. Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering. Journal of the Korean Crystal Growth and Crystal Technology, 19(1), 33-38.

채재홍; 박주석; 안종필; 김경훈. Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering. Journal of the Korean Crystal Growth and Crystal Technology. 2009; 19(1) 33-38.

채재홍, 박주석, 안종필, 김경훈. Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering. 2009; 19(1), 33-38.

채재홍, 박주석, 안종필 and 김경훈. "Microstructure and thermal conductivity of AlN ceramics with Y2O3 fabricated by pressureless sintering" Journal of the Korean Crystal Growth and Crystal Technology 19, no.1 (2009) : 33-38.